Represents the abstract class from which all external reference expression types derive. This class is abstract (MustInherit in Visual Basic) and so cannot be instantiated.
Object Model
Syntax
'Declaration Public MustInherit Class ExternalReferenceExpression Inherits Expression
'Usage Dim instance As ExternalReferenceExpression
public abstract class ExternalReferenceExpression : Expression
Remarks
An external reference is a reference to a cell (or range of cells) that explicitly states the sheet name, so that the reference can be to a location on a different sheet. While the reference may be to a sheet external to the one on which the reference appears, it does not have to be. By adding the sheet name to the reference, the external reference allows cross-sheet references of cells and ranges.
External references can be cell references (for individual cells) and range references (for a contiguous range of cells).
For references within a sheet, use references; for more information refer to the ReferenceExpression class.
For more information about expressions and formulas, refer to the Formula Overview.
Inheritance Hierarchy
System.Object
FarPoint.CalcEngine.Expression
FarPoint.CalcEngine.ExternalReferenceExpression
FarPoint.CalcEngine.ExternalCellExpression
FarPoint.CalcEngine.ExternalRangeExpression
See Also